Multiple lamp-socket.



P. E. SBELBY.

MULTIPLE LAMP SOCKET.

APPLICATION IILED MAY 9. 1908.

945,618. Patented Jan. 4, 1910.

2 1. I f; f F' A g, I z 3 WITNESSES INVENTOR ATroR/vEv UNITEDSTATEiATENT OFFICE.

FRANK E. SEELEY, 0F BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE BRYANTELEC- TRIO COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION OFCONNECTICUT.

MULTIPLE LAMP-SOCKET.

Specification of Letters Patent.

Patented Jan. 4., 1910.

Application filed May 9, 1908. Serial No. 431.980.

To all whom it 'm ag concern:

Be it known that I, FRANK E. SEELEY, a citizen of the United States ofAmerica, residing at Bridgeport, in the county of Fairfield and State ofConnecticut. have invented certain new and useful Improvements inMultiple Lamp-Sockets, of which the following is a specification.

The main object of my invention is to so construct a multiple electricincandescent lamp socket or cluster as to facilitate the wiring andattachment and detachment of the cluster. V

In the accompanying drawings Figure 1 is a vertical section on the line1-1, Fig. 3, of a cluster to which my improvements have been applied;Fig. 2 is a section through the back plate on the line 2-2, Fig. 3; Fig.3 is a view of the back of the device.

My invention is more particularly applicable to clusters having metalcanopies but the detailed construction of the canopy and lamp holdersmay be varied, as that forms no essential feature of my presentinventlon. By way of illustration I have shown a construction of canopyand lamp holders which forms the subject of an application for patentfiled by G. 'W. Groodridge, April 28th, .908. Serial No. 429686. Thiscomprises a sheet metal canopy A, with'radiating shells l5, lined withinsulating material, a series of insulating buttons i) having centralterminals E and screw shell terminals C, which latter project supportedby the lined shells B. The insulating buttons D are connected togetherwithin the canopy by two rings R. R which are at the same time means forelectrically connecting together the terminals of the two sets carriedby the buttons.

into and are On one ring R, 1 provide a contact 7, and on the other ringR, I provide a contact 0". On the inner face of the back plate P whichis adapted to be secured to a pipe, bracket or other support, I afiixinsulation, preferably, two separate pieces 7, 7, arranged on oppositesides of the center of the back plate. To one block 7 are secured aterminal plate F with binding screw for a supply wire, and a springcontact G for connection with the contact r on ring B, when the canopyis put in place. To the other block 7 are secured a terminal plate Fwith binding screw for the second supply wire and a spring contact i forconnection with the contact 1* on ring R The canopy may be secured tothe back plate P by a bayonet joint device, preferably of the form shownin the drawing. that is, by atlixing to the underside of the back plateheaded pins 7), p, which can enter buttonhole slots (1, in a ring Qsecured to the canopy, as will be readily understood.

1 claim as my invention:

A lamp cluster, comprisinga supporting n5 metallic back plate carryingtwo insulation blocks and terminal plates, binding screws and contactsmounted on the insulation blocks, in combination with a canopy carryinglamp holders with lamp terminal. rings 70 and contact fingers to whichthe lamp terminals are connected.

in testimony whereof I- have signed my name to this specification, inthe presence or two subscribing witnesses.

FRANK E. SEELEY.

\Yitnesses A. H. Jones, R. M. EAMES.

